Knitting-machine.



R. W. SCOTT. KNITTING MAUHINE. umoulon SILEDMH 15. 19o?.

Patented Nov. 22

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L57 Apw R. W. SCOTT; 'KNITTING MAGHINB.

l APPLICATION .FILED MAY 15, 1907.

Ptn'ted NOV. 22, 1910.

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R. W. SCOTT.

KNITTING MACHINE. APPLIOATION FILED 11u15, 1907.

Patented N0v.22, 1910.

5 snnETs-SHEB'T uNTTED`sTAT1sTENT onrron.

ROBERT W. SCOTT, OF LEEDS POINT, NEW JERSEY, .ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO SCOTT & WILLIAMS, INCORPORATED, OF CAMDEN, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

IKNTTTINer-lvrAcHINn.

Application led May 15, 1907. Serial No. 373,876.

My invention consists of certainfeatures of a mat'fhine ot' the character shown in -my previous Patent. No. 834,763, dated October 30, 1906, and which may be briefly described as a machine having two sets of needles for the production ot' ribbed fabric, and provided with means whereby stitches may be transferred from needles ot' one set to needlesI of the other set, in order to effect change in the character of the web which is beine' produced.

lMy present ii'ivention comprises means for e'ltectingr the sliogfg'iiig` of the transfer needles in order to cause a doubling of these lstitches with the stitches already upon the needles to which they are transferred, also means tor insuring the proper action, under all conditions of working ot the machine, ot the cams which move the dial needles to transfer position and then to inoperative position. and also means for so manilnilatixrtgthe stitches on either side of the stitch which is being transferred-,as to facilitate such transfer and increase the accuracy ot the transfer operation.

In the accompanying drawings: Figure 1 is a view, partly in side elevation and partly in section, of sutlit-.ient of a machine to illustrate certain features of'niy invention; Fig. 2 is a view, partly in elevation and partly in vertical section, -on the line a-a., Fig. 1; Fig. 3 is a view, partly in elevation and part ly in vertical section, of the needle shoggin devices; Fig. 4t is a plan View of said neeelle shogging devices illustrating the action of the same upon the dialneedles; Fig. is a sectional plan view on the line 5 5, Fig. 1; Fig. 6 is a sectional plan view on the line c-c, Fig. 1; Fig. 7vis a` sectional View of` part of the needle cylinder and cam ring of the machine illustrating one of the features of my invention; Fig: 8 is a. view ot a cam formingY part of 4said mechanism; Figs. 9 and 1.0 are views of two different types ot'y needles employed in the machine; Figs. 1.1 and 12 are exaggerated diagrams illustrating the operation performed by the mechaynism shown in Fig. 7 and Figs. 13 and 14 are side elevations of a pair of cam segments forming part ot the/mechanism for adjusting;` certain/cams which act upon the dial needles of/the machine. Figs. 2, 5 and 6 are on a smaller scale than Fig. l, and Figs. 9 and 10 are on a larger scale than said fiofure.

Referring` first to Figs 1 and 2 of the drawings, 1 representsthe .needle cylinder of the machine, 2 the needledial, and 3-the dial needle jacks mounted so as to swing on a` ring' l secured to the dial-carrying spindle 5 of the machine. these needle jacks being actuated by cams carried by a cam disk (i. also mounted upon the spindle 5, of which cams it will be necessary to refer herein only to the vertically adjustable cams 7 and 9 `whereby the dial needles are abnormally projected in order to engage their stitches with the cylinder needles, and are then retracted in order to cast said stitches and become inoperative.

In the operation of the machine it is necessary at times to raise the dial needles in respect to the cylinder needles in order to form a slacker web',k and in the machine of my former patent such operation effected a change in the relation of the cams corresponding to thecams 7 and 9 to the butts of the dial needle jacks, and one ot the objects of my present invention is to overcome this objection, an object which I attain in the following manner: The retractin cam 7 is carried by a vertical stem 10 which has a pin 11 projecting into the groove of a ring 1,2 surrounding the sleeve 13 which constitutes partof the top trame 24, and serves as a bearing,r for the dial-carrying spindle The cam 9 is carried by a stem 14 which has a pin 15 engaging a groove in a ring` 16 which surrounds the hub ot the ring 12, as shown by dotted lines in Fig. 1, and by full lines in Fig. 2. The ring 16 has an upwardly projectingbar 17 vertically guided in a slot in the top frame 24, and having a projecting pin 19 which engages a cam slot 20 in a segment 21, confined between upper and lower flanges of a. ring 22, the latter being mounted upon the dial spindle 5 so as to be free to turn thereon and having, at the bottom, a cam 23 engaging with a corre- ,spending cam surface in the top frame 2A,

as shown 1n Fig. 2. Between the flanges otthe ring 22 1s also mounted another segment 25, which has a cam yslot 26 for the reception of a pin 27 on a bar 29, the latter being contained in a slot in the ring 16, and connected at its lower end to the hub of the lower ring 12, (see Fie. 2).

The fianges of the rlng 22 are slotted for the reception of the bars 17 and 29, and the lower flange of said ring is connected, by a link 30, to a llever 31, which is operated, at the proper times and through suitable con-` nections, by the general pattern drum of the machine, and the segment 21 is connected, by means of a link 33, to a similarly operatedl lever 34. The segments 21 and 25 do not completely embrace the ring 22, (see Fig. 5) and there is consequently provision for a certain amount of lost motion between said segments. The cam groove of leach segment has a double lift, as shown in Figs. 13 and 14, and the cam groove 20 has a longer dwell portion than the cam groove 26, the purpose of this' construction, in connection with the lost motion between the segments, being to effect independent movement of the two cams 7 and 9. As shown in Figs. 1 and 2 both cams are depressed and the first movement of the segment 21 in the direction of the arrow, Fig. 1, will have the effect` of lifting the projecting cam 9 without affecting the position of the retracting cam 7, but the same movement will bring the forward end of the segment 21 into contact with the adjoining end of the segment 25 and further forward movement of said segment 21 will, therefore, be imparted to the segment 25 and the cam 7 will be lifted, the pin 19 of the bar 17, being, during this movement, contained in the dwell portion of the cam groove 20. The first portion of the reverse movement of the segment 21 will be devoted to taking up the lost motion between what is now the forward end of the same and the. adjoining end of thesegm'cnt 25, the pin 19 being still contained in the dwell portionof the cam slot 20, and the following portions of said movement will effect first a partial depression of both cams and then a complete depression of the same, for `the purposes clearl y set forth in my former patent.

The driving pinion 35, which'is secured to the upper endof the dial spindle5, rests upon a washer 36 supported upon the upper fiange of thel ring 22,; h`ence when said ring is partially turned aroundthe spindle in order to raise the same-the dial needles, and their cam disk, by reason of the action of the cam 23, there will, at the same time be a corresponding lift of the segments 21 and 25, and of the rings 12 and 16 which control the operation of the'cams 7 and 9, consequently the latter will always 1ear their proper and intended relation to the upper ends of the dial needle jacks whether the latter occupy the raised or the lowered posit-ion.

The shogging of the dial needles is effected by means of a pair of rotating wheels 40 and 41, (Fig. 4), each having beveled teeth and each driven so their peripheral portions move at the same speed as the dial needle jacks with which they engage, when said jacks are abnormally projected the teeth of the wheel 40 bein beveled in one direct-ion to correspondingly deflect said jacks in respect to the cylinder needles and,V the teeth of the wheel 41 being beveled in the opposite direction in order to restore said jacks to their former position before they are again retracted into the grooves of the dial. The wheels 40 and 41 are mounted respectively, upon studs 42 and 43 secured to and depending from one arm of a lever 44, which is pivotally mounted upon the driving shaft 45, at one side of the machine, the other arm of said lever 44 having a forked end for engaging a pin 46 on one arm of alever 47 whose other arm is under control of a suitable cam on the pattern drum spindle, whereby it can be moved so as to 4carry the shogging wheels into and out 90 of position to engage the needle jacks. Constant rotation of the shogging wheels 40 and 41 is effected by gearing them to the shaft 45, such gearing comprising a spur pinion 50 on said shaft, said pinion meshing with a 95 spur wtheel 51, which is mounted on a stud -52 carried by the lever 44 and meshes with spur pinions 53 and 54, secured, respectively, to the shogging wheels 40 and 41.

The diagram, Fig. 11, illustrates the 100 transfer of rib vstitches of a one-and-one i ribbed web to theretofore inoperative cylinder needles alternating-with the active cylinder needles, and Fig. 12, illustrates the transfer to like needles of the rib stitches of a two-and-one ribbed web, the stitches transferred in the operation shown in Fig. 11 being those'of a course preceding that upon the needles, and the stitches transferred in the operation shown in Fig. 12, being those carried by theneedles. Long stitches are drawn upon the cylinder needles on each side of that to which a dial needle stitch is being transferred, ythe purpose bei. g' to-impart additional tension tothe stitch 115 upon the transfer needle so as to laterally distend the same and thereby provide an opening of increased area for the entrance of the receiving cylinder needle, the effect being the same whether said receiving needle enters a stitch of the course preceding that upon the transfer needle, as in Fig. 11, or the stitch carried by the needle as in Fig. 12. lnorder to effect this result extra draft is imparted to the cylinder needle on each side of the receiving needle and this extra draft is imparted by means of a am (i0 which acts upon a shoulder 61, (Figs. 7 and 9) formed on a jack ofthe needle ou each side of that to which the stitch which is to be transferred, the jacks of the receiving' needles being Without siieh shoulders but being cut away on theirv front sides to a greater ldepthgas shown in Fig. 10, so that the necessary movement can be imparted toV thexnbythe cams which move them into receiving position without brin ing them into yContactwith the cam .60; r Said cam 60 has two nto ements imparted toit, namely, a

y'ioi f 'and #a Swingin #movement caused by partialrota'tion'of the cam stem 62 around its axis,

movement fro and towardy the needle jacks,

` said' stein being mounted in suitable bearings vis in the cam ring 63 of the machine, and having a projecting pin 64 which is under the infinence of a cam slot 65'i'n the hub of a lever `66, capable of being moved in onedif. n rection or the other by suitable means nnder control of the pattern mechanism of the 20 machine. n

As shown in Fig. 7 the cam is in the operative position, biit',"bf` backward move- .ment of the lever 66, said cam will first be withdrawnr from engagement with the shoul dered portions of the needle' jacks and will then be turned up to the; inoperative position shown by dotted lines in Fig. 8, movement of -the lever 66 in the opposite direction edecting first a forward thrust of the cani lsoas to bring it into Lposition above lthe shouldered portions of the jacks and then a downward movement which will adjust it to position for depressing said jacks as; they r`successively come under -its influence, the

cam being so formed'as to retain at least two adjoining needles in such depressed position diiring the time the stitch' is being transferred to the needle between t-henif l. The combination, infa. knittinggniaf chine, oi"- dial needles. cams for operating the same to transfer 'their stitches, cam-ad- ]iisting devices,y and means for .effecting a common rise Vand -fall of saiddial needle cams and cam-adjustingdevices.

2.,'l`he combination, in a knitting machine, of dialneedles, cams for operat'eng, vthe saine to transfertheir stitches, cam-aib jiisting devices, dial needle raising and low;

erin'g devices, -and means-engaged by thc.

latter -for imparting a l-ike'n'ioi-'enient to the raising and lowering devices..."

cani-adjusting devices.

The/ coi'nbination, in a lknitting ma'- 'cliine, of dial ii'cedlcs, cams' for operating the saineto transfer their stitches, dial needle raising and'lowering devices, and

cain-adjnstiiig devices engaging, but susceptible of movement.. independently of, said '4. 'l`lie combination, iii-a knitting ma- Hcliinc; of dial needles, 'cams for operating tlic latter to transfer their stitclies,.dial yneedle raising and lowering devices, andA amfadjiisting devices comprising cam seg# yto engage the needles.

ments engaging said raising and lowering devices but movable independently oi the same, said camr segments being ,constructed to provide lost motion betweenthem.

5.Thecombination, in a knitting machine, of dialenee'dles, cams for operating the`I latter tov transfer their stitches, and means for imparting to said cams a twostage movement whereby they are cai'ised 6. The combination, in a knitting mathe latter to transfer their stitches, raising and lowering-devices for said dial needles, and cam-segments movable 'with saidV devices` each segment controlling one of the chine, of dial needles, cams`- for operating` dial-needle-operating. cams and each being so formed as to impart a two-stage movement to the cam controlled thereby.

7 The combination, in a knitting machine, ofdial needles, cams foroaerating said needles to transfer their stitcl for operating said cam segments whereby they are causedjto impart simultaneous movement to' the dial-needlc-operating cams in one direction and successive movementin theopposite direction. l l y 9. The combinatioin-in a knitting ma'.-

ies, and means for moving said cams simultaneously chine, of dial needles, cams for operating'.

the same to transfer their stitches. rings for controlling said cams, devices for raising and lowering thedial needles, and a cani structure engaging ,said devices and constructed to control, independently, the rings los Y which govern the operation of` the dialneedle-opera-ting cams.

10. The combination, in vajknitting in'achine, of dial needles, cams for operating the same to transfer'their stitches, a cani -ring for raising the dial needles, ac ain ,structure engaging said ring and imparting movement to the dial-needle-operating cams, and means for independently operating said cam structure and cam ring.

11. The combination, in a, knitting machine,-o'f tivo sets of needles, thoseof one set being movable into position to transfer stitches to needles of the other set, andA a pair ofV toothed and rotatable shogging -wheels for acting upon the needles' from which said transfer is eilecte..

12,The combination, in a lknitting inachine, ot' two sets of needles, those of one set being movable into positron to transfer stitches to needles lof the other set, a' pair of toothed and rotatable sli'ogging wheels for i "chine, of two sets of rotating needles," those of one set being adjustable into position to transfer stitches to needles of the other set, a pair of toothed shogging wheels acting upon said transfer needles, and means for rotating said wheels whereby their toothed portions will move in unison with the rotar;T movement of the transfer needles.

14. The combination, in a knitting machine, of two sets of needles, those of one setvbeing movable into position to transfer stitches to needles of the other set, and a pair of toothed and rotatable shogging wheelsfor lengaging said transfer needles, the teeth of one of said wheels being beveled in a direction the reverse of those of the other wheel.

15. The combination, in a knitting machine, of two sets of needles, means for transferring stitches from needles of one set to needles'of the other set, and means for imparting draft to the needles fianking a receiving needle during the timethat a stitch is being transferred thereto.

16. Thecombination, in a knitting machine, of two sets of needles, means for transferring stitches from needles of one set to needles of the other set, a cam for imparting draft to the needles which Hank va receiving needle-at the time of the transfer of the stitch thereto, and means for moving said cam into and out of operative position.

17. The combination, in a`knitt1ng machine, of two-sets .of needles, means for transferring stitches from needles of oneset to needles vof the other set, a cam for im parting draftto the needles flanking a receiving needle at the time that the stitch is being transferred to the latter, and means Witnesses for moving said cam from and toward said needles.

18.. The combination, in a knitting machine, of two sets of needles, means for 'transferring stitches from needles of one set to needles of the other set, a cam for imparting draft to the needles which flank a receiving needle at the time o f the transferV of the stitch' thereto, and means for swinging said cam.

19. IThe combination, in a knitting machine, of two sets of needles,.means for transferring stitches from needles of one set to needles ofthe other set, a cam for imparting draft to the needles which flank a receiving needle at the time of transfer, and means for imparting to said cam a.v swinging movement and a movement from and toward the needles. 's

20. The combination, in'a knitting maf chine, of two sets of needles, means for transferring stitches from needles of one set to needles of the other set, and a cam for imparting' draft to the needles which Hank a receiving needle at the time of transfer, the latter needles having shoulders for engaging said draft cam, which shoulders are independent of the butts upon which the knitting cams act.

2l. The combination, in ay knitting machine, of two sets of needles, means for to needles of the other set, and a cam for imparting draft to the needles which Hank a receiving needle at the time of transfer, said latter needles having recessed jacks -for receiving said draft cai In testimony whereof, I have signed my name to this specifica-tion, in the presence of two subscribing witnesse.

ROBERT w. scorr.

HAMILTON D. TURNER, KATE A. BEADLE.

- transferring stitches from needles of one set- 

